Geoege william green



(No Model.)

G. W. GREEN.

OAR OR SOULL BLADE.

No; 358,034. I Patented Feb. 22, 1887.

UNITED STATES PATENT OFFICE.

GEORGE WILLIAM GREEN, OF LONDON, ENGLAND.

OAR OR SCULL BLADE.

SPECIFICATION forming part of Letters Patent No. 358,034. dated February22, 1887.

Application filed August 30, 1886. Serial No. 212.272. (No model.)Patented in New Zcaland March 22, 188$,No. 1,767, and in England May 24,1886, No. 6,955.

To all whom it may concern:

Be it known that .I, GEORGE WILLIAM GREEN, a subject of the Queen ofGreat Britain, and now a resident of Nos. 17 and 18 Basinghall street,London, England, have in vented new and useful Improvements in Oar andScull Blades, (for which I have obtained a patent in New Zealand, No.1,767, bearing date March 22, 1886, and also in Great Britain a patentNo. 6,955, bearing date May 24, 1886,) of which the following is aspecification.

This invention relates to the construction of oars or sculls for boatingand other similar purposes.

To enable those skilled in the art to fully understand and construct myinvention, 1 will proceed to describe it.

Figure 1 is a sectional elevation of the blade of an oar or scullconstructed of sheet metal after the manner of this my invention. Fig. 2is afrontelevation of Fig. 1. Fig. 3 is a sectional view of Fig. 2 uponline A B. Fig. 4 is an enlarged sectional view of Fig. 2 upon line C D.

The plate a is formed of one piece from end to end. Upon the inner orconcave side of this plate I attach a hollow rib or channel, b,

- turned extending the whole length of the plate, or as far as ispracticable, and of such a sectional form that the upper sides at c andd coincide with the sectional shape of the inner plate, 0. This innerplate, 6, is also shaped to suit the plate a, and having a curved ribdown its cen ter, forming a concavepart upon both sides of it and theedges, the said rib diminishing as it approaches the end of the blade.The hollow rib or channel I) is parallel in plan in its length, as shownby dotted lines in Fig. 2, and is soldered or otherwise suitablyfastened to the plate a along its entire length at f, thus making apermanent strengthening-rib to the plate a, and also affording a hole orsocket to receive the handle.

Around and along the edges of the plate a the metal is turned up, sothat the inner plate, 6, may lie therein,when the said edges are thendown onto the plate 6 and soldered thereto, thus uniting the plates atand e together. This joint may, however, be made without the metal ofthe plate a being turned over, as the two platesaand e may be cut levelwith each other at their edges and there soldered together.

The handle g,which is made of wood,would be made to pass as far into thehollow rib as practicable-the farther the better-aud for ordinary usethis would be sufficient to hold the handle in the blade; but I mayalso, if de sired, further secure the handle in the said blade byscrews, cement, or other devices. These metallic blades may beconstructed of any suitable kind of sheet metal, but generally theywould be made of sheet-steel.

Although I have shown the drawings, I do not limit myself to the preciseshapes and curves shown, inasmuch as these may be somewhat varied tosuit taste and science without departing from my invention.

I am aware that oars and sculls have been already made of metallicblades in various forms with wooden handles; but such blades have beenmade of solid iron or steel, except in some cases a socket has beenprovided upon the blade for the handle; but in this my invention theblade itself is hollow, being built up into a shape resembling thosemade of wood, and very much stronger than those made of solid material,weight for weight,and which are more or less buoyant in water.

Having now fully described my invention, what I desire to claim andsecure by Letters Patent is The hollow blade constructed on its oppositefaces with a convex surface and concave surfaces, and having alongitudinal hollow rib, b, throughout its length to receive the woodenhandle 9, together with a wooden handle, constructed and combined as andfor the purpose herein specified.

GEORGE WILLIAM GREEN.

Witnesses:

OHAELEs T. POWELL, ERNEST W. J ones.

